Motus AY Laser
Laser hair removal relies on the way light interacts with skin and hair follicles. Understanding the basic principles of light absorption and its effects on the skin is crucial for effective and safe treatment. On this page, we’ll break down the key concepts behind the action of light, focusing on chromophores, absorption, and how laser wavelengths target hair follicles.
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Physical Properties and Settings
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Understanding Wavelength 755 nm and 1064 nm
The wavelength determines how deep the laser penetrates and which chromophores it targets. For lighter skin types and finer hair, the 755 nm Alexandrite laser is ideal, while the 1064 nm Nd
laser is better suited for darker skin types or coarser hair. Learn how to select the appropriate wavelength based on your client’s skin type and hair color.
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Fluence: How much energy do you need?
Fluence, measured in Joules per square centimeter (J/cm²), defines how much energy the laser delivers to the target area. A higher fluence is required for coarse, dark hair, while lower fluence is recommended for finer hair or sensitive skin types. Adjust the fluence to ensure effective hair destruction without causing damage to the surrounding skin.
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Frequency: Adjusting Laser Pulse Speed for Optimal Results
Frequency controls how many laser pulses are delivered per second, impacting the speed and efficiency of treatments. Higher frequencies are perfect for large areas like the legs, where faster treatment times are desired. For smaller, sensitive areas, reducing the frequency allows for more control and prevents overheating. Learn how to balance frequency settings on the Motus AY machine to ensure both quick and comfortable treatments, tailored to each client’s needs.
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Pulse Duration: Timing the laser's Impact
Pulse duration refers to the time the laser light is applied to the skin and is measured in milliseconds. Shorter pulses are best for fine hair, while longer pulses are needed for thicker, deeper hairs. Matching the pulse duration to the hair type ensures the heat remains concentrated in the follicle, improving treatment effectiveness and safety.
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Spot Size: Targeting Precision and Coverage
Spot size refers to the diameter of the laser beam. A larger spot size covers more area, making treatments on large body parts like the legs faster. For smaller or more detailed areas such as the upper lip or underarms, a smaller spot size allows for greater precision. Learn how to adjust spot size to suit the area being treated.
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Repetition Rate: Balancing Speed and Safety
The repetition rate, measured in Hertz (Hz), determines how fast the laser pulses are emitted. A higher repetition rate allows faster treatment but may increase heat build-up, so it’s important to balance speed with client comfort. Adjust the rate based on the treatment area size and the client’s tolerance to ensure safety and efficacy.
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Cooling Systems: Protecting the Skin During Treatment
Skin cooling systems are critical for protecting the epidermis and improving patient comfort. The Motus AY’s integrated cooling system ensures that the surface skin remains cool while the laser targets the hair follicles. Adjust the cooling settings according to the skin type and treatment area to prevent burns and reduce discomfort.
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Understanding the Action of Light in Laser Hair Removal
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Introduction to the Action of Light
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Light Absorption Coefficient: How Light Behaves on the Skin
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Wavelengths and Chromophore Absorption
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Selective Photothermolysis: Targeting Hair Follicles Safely
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Fluence: The Amount of Energy Delivered
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Pulse Duration: Controlling the Time the Laser Stays on the Skin
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Skin Cooling: Protecting the Epidermis
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Test Your Knowledge
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Motus AY Treatment Options
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Vascular Lesions
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Benign Pigmented Lesions
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Anti Aging
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Laser Facials
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Meet your instructors
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Meet your instructors ✳
KATE
MACK
It all begins with an idea. Maybe you want to launch a business. Maybe you want to turn a hobby into something more. Or maybe you have a creative project to share with the world.
What you’ll learn
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Describe your lesson with a short summary.
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Describe your lesson with a short summary.
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Describe your lesson with a short summary.
Course FAQ
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It all begins with an idea. Maybe you want to launch a business. Maybe you want to turn a hobby into something more. Or maybe you have a creative project to share with the world. Whatever it is, the way you tell your story online can make all the difference.
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It all begins with an idea. Maybe you want to launch a business. Maybe you want to turn a hobby into something more. Or maybe you have a creative project to share with the world. Whatever it is, the way you tell your story online can make all the difference.
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It all begins with an idea. Maybe you want to launch a business. Maybe you want to turn a hobby into something more. Or maybe you have a creative project to share with the world. Whatever it is, the way you tell your story online can make all the difference.